Question

a video game has 3 villains who pop up at different times one villain comes up every 5 seconds a second villain comes up every 10 seconds a third villain appears every 16 seconds find the LCD (least common denominator) of 5, 10 and 15 to determine how much time will pass before 3 villains appear at the same time PLEASEEEEEEEE ANSWER SOON THIS COUNTS FOR 60% OF MY GRADE

Answer 1

the least common denominator is 30
so once 30 seconds has passed then all three will pop up.